Bottle cap



FIG. 1 is a top view of a bottle cap showing my new design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a side view thereof; and,

FIG. 4 is a perspective view showing my new cap design.

The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. 

The design for a bottle cap, as shown and described. 